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Super cool, interactive image of a transit across the sky of the International Space Station – from May 26, 2017 – by Project Nightflight of Austria.
Radar astronomers are peering toward asteroid 2017 CS, closest on May 29. Another asteroid – 418094 (2007 WV4) – will be closest June 1. Charts here for Saturday night, for 8-inch or larger ‘scopes!
On May 25, 1961, John F. Kennedy gave a stirring speech to a joint session of Congress, inspiring a nation to land humans on the moon with a decade.
By at least 1 definition, the year 2017 has 4 supermoons. Three are new moons and not visible in our sky. The only full moon supermoon of 2017 will come in December.
A 1st-of-its-kind stamp that changes when you touch it, commemorating the August 21, 2017 total solar eclipse. Fred Espenak – whose photos are on the new stamp – tells the story.
Our teeth evolved from the same genes that make the bizarre beaked teeth of the pufferfish, according to new research.
Fossil remains of Homo naledi found in a South African cave might be the first evidence of another species of hominin coexisting with the first humans in Africa.
Controversy surrounds construction of hydropower stations on a river that feeds deep, ancient Lake Baikal.
Cool short video of an early morning Eta Aquarid meteor over Mount Bromo in Indonesia, by Justin Ng. Take a few seconds and enjoy!
Watch 2 astronauts perform landmark 200th ISS spacewalk on Friday, May 12. Live coverage begins at 6:30 a.m. EDT (10:30 UTC). Links to viewing here.
We can’t observe brain activity of extinct human species. But we can observe modern brains doing things that our distant ancestors did for clues to how their brains worked.
This article from NASA’s Center for Near-Earth Object Studies provides fresh details on the closest approach by a large asteroid since 2004 … and shows you how science works.
In 1898, a pair of lions ate 135 people at a railroad camp in Kenya. Scientists have analyzed microscopic wear on the lions’ teeth to find out why.
Just for fun, take 60 seconds to check out this new video from the guys at AsapSCIENCE.
Happy birthday May babies! Your birthstone, the emerald, is a type of beryl colored green by chromium. Perfect emeralds are among the rarest of gemstones.
Happy May Day! A few words about this annual celebration, which has its roots in astronomy.
Up to 1 billion birds die each year in the U.S. due to collisions with windows. Why do birds slam into windows, and what can you do to prevent it?
The guys at Project Skyglow have done some amazing videos, and they have a new book out. It’s not too late to enter their giveaway, honoring International Dark Sky Week.
Twitter has been blowing up with posts on cats’ attraction to taped squares on the ground. An animal behavior expert explains what draws Fluffy to the #CatSquare.
Radar images of close-passing large asteroid 2014 JO25, which swept near last week, show it looks a lot like Comet 67P/Churyumov–Gerasimenko, which was explored by the Rosetta spacecraft.
Moon and Regulus on May 30
This season’s 1st noctilucent clouds